Hippy,
on my 03, I have a metal tab on the front that slides onto a 'receiver' and a metal tab on the rear that bolts to the fender (via a spike

).
My battery posts are on top and it was showing signs of arcing to the metal seat pan.
So, what I did was use two sections of rubber battery pads (the kind that go on the bottom of the battery tray) and looped them over the posts along with some rubber post protectors (the kind car batteries have) and I have zero problems with this. Best of all, it cost me like 8 bucks for all that stuff. I'm at work now but when I get home, I'll snap some pics of my set up for you.
Oh, and there is plenty of room for all this added stuff to include a set of mechanix gloves for those times I want to check my plugs (check my mixture) on a ride stop.
I also ran a leather strap across the length of the batter to keep everything nice and neat.
Hope this helps.
LDO